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You can produce a WASI binary by running
wasm_of_ocaml
with the--enable wasi
flag:This produces some Wasm code that can be directly executed by the Wizard engine:
wasmtime does not support the exception handling proposal yet. Assuming that your program does not raise any exception, you can produce a binary that will work with wasmtime as well by adding the
--enable trap-on-exception
flag:You can then execute it with the following command:
Note that we keep the same output convention, at least for now: a JavaScript file
foo.js
and a directoryfoo.assets
containing the Wasm code. The JavaScript file can be use to run the WASI binary withnode
.